Tungsten boat
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Supplier KMZ offers a tungsten boat at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.
Technical characteristics
Tungsten boat is a combination of a refractory metal such as tungsten (melting point 3422 °C), and barrier alumina (Al2 O3). Open the metal region, forming the bottom of the boat, allows the sample to be in good thermal contact with the source. The barrier will contribute to a concentration of heat towards the center. The boat used for heat treatment of refractory materials and deposition of thin surface films. The barrier of alumina prevents the evaporator (if it is used as a sample) from moving towards the heat sink or from wetting the entire item. During evaporation, the tungsten can be alloyed with certain materials, such as aluminum or gold. In this case, typically use a different material source evaporation, for example, boats with coating of aluminum oxide.
Production
Tungsten boats (according to the 48−19−346−81,) are produced from high-quality tungsten grades VA, and VRN-PM purity to 99.95%, based on tungsten, a maximum number of impurities (lanthanum oxide) is not more than 0.04%, by sequential operations of cutting and bending. Tungsten has the lowest vapor pressure (at temperatures above 1650 °C) and the maximum value of tensile strength. Tungsten also has the lowest coefficient of thermal expansion among metals, makes it a perfect material for evaporation sources, which serve pumps.
The basic qualities
- Operating temperatures of up to 3420 °C;
- The minimum value of the coefficient of thermal expansion;
- Resistance to mechanical damage of the surface.
The range of tungsten boats
| Overall dimensions, mm | Deflection, mm | The thickness of the tungsten mm | Operational settings for 1800 ° C |
| 101.6 x 25.4 mm | 25.4 x 58,8 | 0,25 | Of 3.01 IN / 391A / 1177 W |
| 101,6 x 12,7 | 12.7 x 38.1 | 0,25 | 2.90 V / 196A / 568Вт |
| 101.6 x 19 | 12,7 x 38,1 | 0,25 | 3.28 V / 300A / 984Вт |
| 89x19 | 6.35 x 3.2 x 19 mm | 0.127 mm | 95V / 100A / 195Вт |
| 89x19 | A 6.35 x 3.2 x 19 | 0,254 | 47V / 158A / 232Вт |
| 102x19 | 6.35x3.2x38 | To 0.127 | 2.76 IN / 96A / 265 W |
| 76.2 x 19,5 | 15.9 x 25.4 mm | To 0.127 | 3.04 V / 199A / 605Вт |
Under the order produce and other sizes.
Buy
Supplier KMZ offers to buy a tungsten boat at economical price. Regular customers can take advantage of the discount discount. The provider ensures timely delivery of products to any email address. The price is the best in this segment of the rental.
Supply, price
You can buy a tungsten boat provider KMZ can at an affordable price. The price is formed based on the European standards of production. You can buy a tungsten boat of any brand in stock at a reasonable price, you can wholesale or retail.